Sound-reproducing machine



Feb. s, 1926. 1,572,6963

J. yVANDERKAMP SQUND REPRODUCING MACHINE Filed Sept. 10, 1921 2Sheets-Sheet 1` if. j

Feb. 9,1926. 1,572,696

J. VANDERKAMP SOUND REPRODUCING MACHIN:

Filed Sept. l0, 1921 2 Sheets-Sheet 2V Jn/v, Vmrom RAMP annum;

Patented Feb. 9, 1926i nuire T a T T THE VAN TGY UOIEEANY, O3?CLEVELAND, OH4

,Application filed September i0, 1921.

To all fwfsom may concern:

Be it known that l, loi-1N VANDERKAMP, a citizen of the United States,residing at Cleveland, in the county oi Cuyahoga and State oic GhiO,have invented certain new and useful improvements iii Soundilepio ducingMachines, oi' which the *following is a specification.

This invention relates to sound reproducing machines, and the object ofthe intenu tion is to provide an exceptionally simple machine adapted tobe produced and sold as a toy at a relatively loiv cost and -in whichthe amplifying horn is constructed in a tier-.lar Way to support thetone nlec le and to reproduce sounds, using adisk` record.

in the accompanying drawings, Fig. l is i plan view of my improvedsoundreproducing machine, and Fig. 2 is a horizontal sec ion oil thebody of the machine. Fig. 3 is a side elevation partly in section, o tthe machine. Fig. hi is a horizontal sectional view ot the soundreproducing or ainplii'yine; horn, Ion line i-1loi' Fig. 5, and Fig. 5isa vertical sectional view longitudinally of the horn. Fig. 6 is acro-ss section of a horn on line 6 6 of Fig. 5, showing the tone arm andneedle. Fig. 7 is a reduced view ot the blank which is folded to providethe sound transmitting horn.

The invention comprises a relatively small boi; or cabinet Q Which issubstantially square and formed ivitli a Wooden top and bottoni and e,respectively, united together at each corner by round Wooden p H-ts 5,and the tour sides of the box are `formed of a single sheet oirelatively thin metal snugly sleeved over 'the corner posts. li crankshaft G for a Wooden roller 7 entends through openings in opposite-sides `of the boit, the rller being located at one side of a verticalshaft S Which is journaled centrally Within the upper and lower Woodenplates Send fi respectively. Shaft 8 also comprises a n'ooden roller,and an elastic band or belt 10 eucircles the same and is driven bythecrank roller '7. One or more elastic bands iiiay be employed betweensaid rollers.

'lhe upper end oit vertical shai't 8 projects through top piece 3 andsupports a relatively heavy metal disk l1 'fastened to the shaft byheading the shaft. and the head l2 forms a projection centrally ot thedisk whereby a disk record 13 is adapted to be held in place upon metaldisk 11.

Serial No. 499,54,

A round standard l-l, entends upvJ/'ai ily from yone corner of bosr 2 atone side ot the periphery oit disl; ll, and a soundaeproducing andtransmitting horn is adapted to be removably and rotatably engaged withthe upper end oit said post. l-iorn l is made oi a single sheet ofrelatively stili paper, liber, or cardboard which. cut to provide anarcuate ror sector portion 16 and a straight t tiene 1'1", and thisblank is adapted to be i @led on a straight radial line i8 to provine ahorn of substantially semicircular shape in cross section, one sidebeing left substantially dat although also partly curved or bulging at apoint intermediate its ends Where a curved tone arm 2l is inserted andatixed in place vertically through slots Within the top and bottom sidesof the curved wall at its tapering end. Tongue Il' is doubled back uponitself` to provide a round loop 22 normally oblong in cross sectionexcept when sleeved over round standard 14': upon which it fits With aslight friction but nevertheless suiiicieiitly loose to turn upon thepost. A small metal clip 23 fast-ens the folded end of tongue l? Wheredoubled bacli upon itself, and a straight metal binding strip 24 extendsthe full length Iof the base edge of the tongue and the blank andsecures the abutting border porti-ons of the folded parts of the horntogether. This strip also stililens this poi'- ti'on of the horn,` andthe lower end ot arm 2l projects tl'irough the curved side of the hornat one side ot' strip 24e Where a needle 25 is adapted to be inserted inthe tapering needle socket 2li which is formed at the eX- treme bottomend el the tone arm. The middle portion of the tone arm is in the form`oi? a round hump which is adapted to bear against the rear Wall 28 ofthe horn. rifhis rear Wall 23 is flat except when the tone arm isinserted to bear against it whereupon it iieiied slightly on curvedlines at the smaller tapering end of the horn as seen in Fig. G. lnoperation when the crank of the machine is turned to rotate the recordat a given speed the needle will impart its vibratory movement to thetone arin and to Wall 28 of the horn, thereby reproducing the soundrecorded on the disk record and amplifying it also.

lWhat l claim is:

l. A sound-reproducing machine, comprising a base in combination with asound- (lll reproducing and amplifying horn mounted upon said base, aneedle-supporting arm eX- tendingthrough Said horn having a bnlgedportion in vibrating engagement. with a portion of the Wall thereof.

2. A sound-reproducing machine, comprising a base, a. sound-reproducinghorn of relatively stiff flexible material supported on said base, saidhorn having a normall;T flat wall, and a needle supporting armextendingthrongh said horn having a lateral offset engaged with saidWall of said horn and adapted to maintain said Wall in a flexed curvedpositron.

3. A sound-reproducing and amplifying 15 loop and a needle Supportingarm extending 20 through said horn having a curved portion intermediateits end engaged with one Wall of Said horn near its doubled extension.

JOHN VANDER-KAMP.

